QEMU SCSI device Emulation mode_sense_page off-by-one

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in QEMU. It has been rated as problematic. This vulnerability affects the function mode_sense_page of the component SCSI device Emulation. The manipulation of the argument page leads to off-by-one. This vulnerability is documented as CVE-2021-3930. There is not any exploit available.

Detailsinfo

A vulnerability was found in QEMU (Virtualization Software) (version unknown) and classified as problematic. This issue affects the function mode_sense_page of the component SCSI device Emulation. The manipulation of the argument page with an unknown input leads to a off-by-one vulnerability. Using CWE to declare the problem leads to CWE-193. A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. Impacted is availability.

The weakness was released 02/18/2022. The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2021-3930 since 11/05/2021. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/25/2024).

The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (209571). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Off-by-one
CWE: CWE-193 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/05/2021 🔍
02/18/2022 +105 days 🔍
02/18/2022 +0 days 🔍
10/25/2024 +980 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-3930 (🔍)
GCVE (CVE): GCVE-0-2021-3930
GCVE (VulDB): GCVE-100-193361

Entryinfo

Created: 02/18/2022 21:55
Updated: 10/25/2024 20:36
Changes: 02/18/2022 21:55 (38), 10/25/2024 20:36 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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